Improvement in cooking-ranges



Y zshets-sneepn STUART 8c BRIDGE.

Range, No. 108,736. Patented o'onjz, 1870.

' ZSheets-Shet 2. STUART & BRIDGE.

Rangel u No. 108,736. .patented Oct. 25 1870' fl/ Zrg'f'* FIZMQ@ Q i A lT'MQM'ZW l( ad# ihtitcd ,aS/lates aient @bijna DAVID STUART ANDA LEWISBRIDGE, OF PHILADELPHIA, PENNSYLVA- NIA, ASSIGNORSTO STUART, PETERSON &OO., OF'SAME PLAE.

Letters Patent No. 108,736, dated October 25, 1870.

IM PROV`EM'KENT IN COOKING-RANGES.

The Schedule refei'red to in these Letters Patent and' making' part ofthe same WeLDAvID STUART and LEWIS BRIDGE, both of Philadelphia, countyof Philadelphia, State ot' Pennsylvania, have invented an ImprovedRange, of which the following is a specification.

Nature and Object f the Inc-cation..

Our invention relates to improvements on that class of ranges in whichthe fire-place extends across one end of the range, the remainder of thelatter being occu-l pied by the oven and its lines and our improvements,which are too fully described hereafter to need preliminary explanation,have been designed with the view of distributing the heat more uniformlyto the oven and to the vessels on the boiler-holes.'

Description of the Accompanying Drawing.

Figures l and 2, Sheet No. l, are vertical sections of an improvedrange;

Figure 3, a sectional plan on the line l 2, fig. 2

Figure-4, Sheet No. 2, a transverse vertical sect-ion on the line 3 4,lig. 2;

Figure, 5, a front View; and

Ifignrc 6, a top view.

General Description'.

A is the fire-place of thc range, and l a, an opening through which agridiron or tryingpan can be inserted, the said opening being providedwith a suitable door.

D is the oven, having a suitable door or doors in front of the range,and between the -plate b of the oven and plate d of the hre-place andash-pit, is a flue, E, communicating below with a horizontal flue, F,between the bottom-plate of the oven and Ybottomplate of the. range, andabove with the due G between the top of the oven and top-plate c of therange.

A plate, cl, forming a horizontal o`r nearly horizontal continuation ofthe vertical plate d, divides a flue,'G', throughout a portion of itslength, the products of combustion passing over the top of the plate dand returning beneath the same, and passing under the oven, or taking adirect course over the top of the oven, according to the position ofthe. damper, which can be depressed as shown on fig. 2, thereby exposingan opening, my, in a transverse partition, h, 0r elevated as shown inlig. 1, so as t0 close the said opening.

This partition nis bent toward a corner of the exitopening a', as seenin fig. 3, so as to prevent the access to the said opening of all theproducts of combustion, saving such as pass through the opening/1n. Theportion, Gr of the top flue to the right of the partition 71, however,communicates with the exit-opening, and also with the vertical 'due I atthe end of the 'range opposite the fireplace, and with the tlue lllbeneath the oven.

In single-oven ranges or range-shaped stoves ofthe class to which ourinvention relates, it has been the practice either to carry the productsof combustion yfrom the lire-place downward beneath the oven and vunderthe four rear holes y, or to so divide the lines longitudinally that theproducts of combustion passed round or nearlyround the oven through oneue and returned through an adjacent flue; hence the heat was unequallydistributed; for instance, the vessels on the front row ofboiler-holes,A marked y y y in 1ig.`6, were subjected to amore intenseheat from the products of combustion passing direct from the'tire-place, than vessels on the row of'holcs y y' y above thc returnflue in which the products of combustion, after passing through atortuous course, had lost much of their heat.

This unequal distribution and loss of heat is avoidedA in our improvedrange by causing the products of' combustion to pass in an undividedvolume beneath the first four boiler-holes, and th'en throughzusilngleflue above or around the oven.

It will be readily understood, by noting the position of theboiler-holes shown by dotted lines in lig. 3, that vessels on the fourboiler-holes to the left will be lequally or very nearly equallyhea-ted, while vessels on the two boiler-holes to the 'right will beheated alike by the products of combustion which pass from beneath theoven and through the flue I-to the exit opening.

By our arrangement of lues, too, the oven is more equally heated than bythe direct diving-flue, or by return ilucs, as in the latter case theoven must neces,-

.saril y have a greater heat imparted to it at the por-v tion where it'is subjected to the action of the products of combustion passingthrough the first ilue, than at' the other portion, where it issubjected to the products of combustion decreased in temperature onpassing through 'the return iiuc.

It will be observed on reference to g. 3 that onehole y at the corner tothe right, the shield causing the products ofcombustion to pass beneaththis boiler- Vhole before it passes beneath the adjacent hole at the Ilates to the fireplace, on the opposite sides and rear ends of which arehorizontal angcs, t, for supporting the lire-brick lining, there beingin front of the fire: place a vertical grate, 1v, to which access may hehad through an opening, e, in the front plate of the range.

The lire-brick linings at the rear and on the left of Another importantfeature ot' our improvement rethe fire-place can be retained in theirproper position by the top plate of the range, but the lining j to theright, iig. 2, is held by two plates, k, arranged to move in guides onthe plate d', and bent at the ends so as to overlap the said 1iningj,the opposite ends beingarranged to receive pins, y. which serve toret-ain the plates and lining. Y

The grate M is entirely independent of', and may be free from contactwith, the lining of the fire-place, the grate having at the rear a pinadapted to a projection on theV ledge t, iig. 4, and another pin, t',passing through a hole in the front plate of the range, so that itcanrbe readily agitated by applying a suitable instrument to this pin.

Claims.

In testimony whereof We have signed our names to this speetication inthe presence of two subscribing Witnesses. ,i

DAVID STUART. LEWIS BRIDGE.

4lVitnesses A. H. PERKINPINE, Jos. McGLAnY.

